Brake-shoe



(No Model.) C. W. ROEPPER.

BRAKE SHOE. I No. 423,819. Patented Mar. 18, 1890.

ijljzzlan MWWM W Y WW W t W \H N? v v 8 8 13 mm jg; 9i 3 l M Wm H N UNITED STATES PATENT OFFICE.

CHARLES IV. ROEPPER, OF ALLIANCE, OHIO.

BRAKE-SHOE.

SPECIFICATION forming part of Letters Patent No. 423,819, dated March 18, 1890.

Application filed May 31,1889. $erial No. 312,773. (No model.)

To (6Z5 whom it may concern:

Be it known that I, CHARLES W. ROEPPER, a citizen of the United States, and a resident of Alliance, county of Stark, and State of Ohio, have invented certain new and useful Improvements in Brake-Shoes, of which the following is a specification; the principle of the invention being herein explain ed, and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The principal object and design of this form of brake-shoe has been to form a shoe that will not skid the wheels and will give ample opportunity for the air to reach the wheels between the several portions of the flange-contacting portions of the shoe, thus reducing the temperature of the same caused by friction; and the chief point of invention has been the reduction of the contacting area of the rib that engages with the neck of the tire of the wheel. The several rib portions are formed separate and distinct one from another, whereby air is free to comeinto contact with the said ribs and dust and dirt and grindings may work out between the same. In one form shown herein I provide a series of panels or portions depressed below the surface of the outer tread-contacting portion, whereby as the shoe wears down these independent intermediate portions may be brought into contact with the inner tread portion of the wheel-and serve to smooth it and dress it down, as is frequently necessary.

Referring to the drawings, Figure 1 is a face View of one form of the brakeshoe. Fig; 2 is a face view of another form of embodiment of my invention. Fig. 3 is a transverse section taken on the dotted line of Fig. 2. Fig. 4 is a transverse section taken on the dotted line of Fig. 1.

- A is the outer tread-contacting portion of the brake-shoe, and a series of independent flange-contacting portions B are formed with the grooves 12, adapted to receive the flange of the wheel and have it fit therein, and at their inner portions are provided with the ribs 0, the several ribs being independent and disconnected from each other, said ribs being adapted to have contact with the neck of the wheel-tire, and may be designated as the neck-contacting portions of the shoe. Intermediate of the outer tread-contacting portion and the flange-contacting portions is the series of. independent panel portions D, lying in substantially the same transverse plane with the flange-contact portions and having their faces lying in a plane recessed or withdrawn from the plane of the face of the outer tread-contact portion. The outer projecting faces of said ribs and the outertread-contact portion of the shoe lie in substantially the same transverse planes. A series of recesses D are formed intermediate of the said panel portions D in the form shown in Fig. 2; but in Fig. 1 there is one continuous recess D, extending the length of the shoe.

In certain kinds of shoes it has been found by experiment that it is well to have the panel portions, that tend to dress down and smooth the face of the inner tread of the wheel after the shoe has become partially worn, while in certain other kinds of shoes it is preferable to have a plane continuous recessed portion, as shown in Fig. 1. By breaking away the rib portions and not'making them continuous the shoe does not wear down into the neck of the tire as much as if the rib portion was continuous, and this has been found to be advantageous at times, dependent somewhat on the mode employed in hanging the shoe to the car and the use of the same. Both of these features of course vary more or less on different railroads. Openings d are formed in the recessed portion or portions D.

Certain features of invention shown and described in this applicationnamely, the openings in the inner tread-contact portion and the feature of inclining said contact portion-I do not claim herein, as these features are respectively claimed in my applications, SerialNos. 312,774and 312,775, simultaneously pending herewith.

I designate that portion of the shoe that engages or has contact with the flange of the wheel as the flange-contact or flange-contacting portion, while that portion of the shoe that is opposite to and covers or may be adapted to have engagement with the inner tread portion of the wheel, which is that portion of the wheel most likely to be worn IOO down by engagement with the rail, I designate as the inner tread-contact" or contacting portion of the shoe. The outer tread-contact or contacting portion of the shoe is intended to signify thatportion of the shoe lying outside of the inner tread-contactportion, said outer tread-contact portion being adapted to have engagement with the outer tread portion of the wheel.

The foregoing description and accompanying drawings set forth in detail mechanism in embodimentof myinvention. Change may be made therein provided the principles of construction respectively recited in the foilowing claims are employed. I therefore particularly point out and distinctly claim as my invention- 1. In abrake-shoe, a flange-contacting per"- tion provided with an inner and outer rib portion, the former adapted to engage with the neck of the tire and formed in two or more independent disconnected portions, substantially as set forth.

2. In a brake-shoe, the combination, with a series of independent flange-contactin g portions, respectively provided with a groove and a rib, which latter is adapted to engage with the neck of the tire, said ribs being dis connected from each other, of a tread-contacting portion, substantially as set forth.

3. In a brake-shoe, the coi'nbination, with a series of flangc-contacting portions and an outer tread portion, of a series of intermediate independentpanel portionshaving their faces lying in a different plane than the plane of the contacting face of said outer tread portion, substantially as set forth.

4-. In a brake-shoe, the combination, with a series of independent flangecontacting portions, each provided with a groove and arib, and an outer tread-contacting portion lying in sul'istantially the same plane with the outer projecting face of said ribs, of a series of intermediate iudependentpanelportionshaving their faces lying in a plane depressed from the plane of said outer tread-contacting portion, a series of recesses being formed between said several intermediate panel portions, substantially as set forth.

In testimony that I claim the foregoing to be my invention I have hereunto set my hand this 25th day of May, A. D. 1889.

CHARLES \V. ROEPIER.

\Vitnesses:

J. 1;. Far, N. H. FAY. 

